ChakraCore and Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitra…

published 2017-10-13 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-3410

cvss: 7.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 68.0%; EPSS 68.0% chance of exploitation in 30 days, percentile 99.3%
public exploits: 1; Exploit-DB

ChakraCore and Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11792, CVE-2017-11793, CVE-2017-11796, CVE-2017-11797, CVE-2017-11798, CVE-2017-11799, CVE-2017-11800, CVE-2017-11801, CVE-2017-11802, CVE-2017-11804, CVE-2017-11805, CVE-2017-11806, CVE-2017-11807, CVE-2017-11808, CVE-2017-11810, CVE-2017-11811, CVE-2017-11812, and CVE-2017-11821.

Patch / fix

links 1

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11809 advisory

Timeline

2017-10-13 Published
2017-10-17 First public exploit (EDB-42999)

Exploit prediction

68.03% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-42999 Microsoft Edge Chakra - 'StackScriptFunction::BoxState::Box' Accesses to Uninitialized Pointers (Denial of Service) dos, 2017-10-17

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.5	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	7.6	AV:N/AC:H/Au:N/C:C/I:C/A:C

Affected products

Microsoft Corporation ChakraCore, Microsoft Edge

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2017-11809
patch, vendor-advisory
exploit-db.com /exploits/42999/
exploit, third-party-advisory, vdb-entry
securityfocus.com /bid/101137
vdb-entry, third-party-advisory
securitytracker.com /id/1039532
vdb-entry, third-party-advisory

Sources

CVE List CVE-2017-11809
NVD CVE-2017-11809

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary